In the last years, chirality has gained an increasing interest in the fields of metamaterials and organic optoelectronics as an important parameter for controlling supramolecular arrangement of π- conjugated systems at different hierarchy levels, opening the way to highly innovative technological applications.[1] Most of these devices are based on the different interaction of the active layer with leftand right-handed circularly polarized light, therefore a current research goal is to obtain thin films of organic π-conjugated systems displaying significant chiroptical properties in absorption (i.e. electronic circular dichroism, ECD) or in emission (i.e. circularly polarized luminescence, CPL). In the present work we developed a family of novel chiral π-conjugated oligomers functionalized with inexpensive alkyl chiral groups from natural sources, studying their ECD and CPL features in thin films. Although in general we found a manifold of situations, revealing the central role of different local supramolecular structures (strictly related to chemical structure, deposition technique and postdeposition operations), in some cases we discovered outstanding chiroptical features.

Outstanding chiroptical features in thin films of chiral π-conjugated oligomers: a from synthesis to applications

G. Albano
;
L. A. Aronica;L. Di Bari
2019-01-01

Abstract

In the last years, chirality has gained an increasing interest in the fields of metamaterials and organic optoelectronics as an important parameter for controlling supramolecular arrangement of π- conjugated systems at different hierarchy levels, opening the way to highly innovative technological applications.[1] Most of these devices are based on the different interaction of the active layer with leftand right-handed circularly polarized light, therefore a current research goal is to obtain thin films of organic π-conjugated systems displaying significant chiroptical properties in absorption (i.e. electronic circular dichroism, ECD) or in emission (i.e. circularly polarized luminescence, CPL). In the present work we developed a family of novel chiral π-conjugated oligomers functionalized with inexpensive alkyl chiral groups from natural sources, studying their ECD and CPL features in thin films. Although in general we found a manifold of situations, revealing the central role of different local supramolecular structures (strictly related to chemical structure, deposition technique and postdeposition operations), in some cases we discovered outstanding chiroptical features.
File in questo prodotto:
File Dimensione Formato  
CDCO2019 Award Lecture.pdf

solo utenti autorizzati

Tipologia: Versione finale editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 282.52 kB
Formato Adobe PDF
282.52 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/1006801
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact